786786680 has 16 divisors (see below), whose sum is σ = 1770270120. Its totient is φ = 314714656.

The previous prime is 786786629. The next prime is 786786683. The reversal of 786786680 is 86687687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (786786683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9834794 + ... + 9834873.

Almost surely, 2^786786680 is an apocalyptic number.

It is an amenable number.

786786680 is an abundant number, since it is smaller than the sum of its proper divisors (983483440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

786786680 is a wasteful number, since it uses less digits than its factorization.

786786680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19669678 (or 19669674 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The square root of 786786680 is about 28049.7180021475. The cubic root of 786786680 is about 923.1784674544.

It can be divided in two parts, 78678 and 6680, that added together give a palindrome (85358).

The spelling of 786786680 in words is "seven hundred eighty-six million, seven hundred eighty-six thousand, six hundred eighty".